Apparatus for rolling metal shapes.



E. E. SLICK. APPARATUS FOR ROLLING METAL SHAPES. APPLICATION FILED AUG.4, 1 90e.

, Patented Jan.31,191 1.

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INVEN'I'OR E. E. SLICK.

I APPARATUS FOR ROLLING METAL SHAPES.

APPLICATION FILED AUG. 4, 1906.

982,888. I Patented Jan.31, 1911.

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Tiff" M WITNE ES INVENTOR 1 EDWIN E. SLICK, F BITTSBURG, PENNSYLVANIA.

APPARATUS FUR ROLLING METAL SHAPES.

Specification of Letters Iatent.

Patented Jan. 31, 1911 Application filed August 4, 1906. Serial No.329,166.

To all whom it may concern: 7 Be it known that I, Eow'm E. SLICK, ofPittsburg, Allegheny county, Pennsylvania,

, have invented a new and useful Improvement in Apparatus for RollingMetal Shapes, of which the following is a full, clear, and exactdescription, reference being had to the accompanying drawings, formingpart of this specification, in which Figure 1 is a plan view, partly insection, showing my improved apparatus; Fig. 2 is a side elevation of astand of reducing rolls showing the last reducing pass; Fig. 3 is a sideelevation of the supplemental stand of rolls, showing the first bendingpass; and

Fig. 4 is a similar view showing the finishing stand of rolls in whichthe metal is given its final form.

My invention rclates to apparatus used in rolling flanged metal shapesand is shown as it is applied in rolling shapes known commercially asangles.

The object ofmy invention is to provide improved means for forming suchshapes by which the metal is reduced and bent into its finished form.

Another object of my invention isto provide improved mechanism fordriving such forming means by the use of which the life of the rolls isincreased and the time necessary in making the shapes is reduced.

The invention consists in the arrangement which a re carried on theusual housing shoes 6. The rolls 2, 3' are rotated by the roll pinions 7which are carried in bearing 8 mounted in the pinion housings 9 whichare also carried on the shoes 6, the rolls 2, 3 and pinions 7 beingconnected to ether by the usual coupling boxes 10 and spindles 11.-

v The lower pinion 7 is connected by coupling boxes 12 and a leadingspindle 13 with the crab 14 which is mounted on the shaft 15 of thedriving motor, which niotor may be of any desired type. In front of thefinishing stand of rolls is an additional two -high stand comprising thetop roll 16 and bottom roll 17 carriedon bearings 18 in the rollhousings 19, the housings 19 being mounted on housing shoes 20; Theinions 21 are carried on the bearings 22 w iich are mounted in thepinion housings 23, these housings also being supported on the housingshoes 20. The rolls 16, 17 and pinions 21 are connected together bymeans of the coupling boxes 24and spindles 25'and the bottom pinion 21is connected by coupling boxes 25 and leading spindle 27 with the crab28 which is securely keyed to a driving. shaft 29, the shaft 2!) beingcarried by the bearings 30.

Keyed to the crab 14 on the motor shaft 15 is a spur gear wheel 31 whichmeslieswith an idler spur gear 32 on the shaft 33 which is mounted inthe bearings 34. The idler wheel 32 also meshes with a spur gear wheel35 which is mounted so as to rotate on the shaft 29. Also mounted on theshaft 29 is a jaw clutch 36, 36, the driving member 36 being secured toand rotated by the spur gear 35. The driven member 36 of the clutch issplined. to the shaft 29 so as to rotate it and through the connectingmechanism, to positively drive the rolls 16, 17. The jaws of the clutchare normally held in engagement with each other by means of the spring37.

The bending rolls 16, 17 may be located in front of the finishing rolls2, 3 as shown, so as to prepare the shape being rolled to enter thesubsequent finishing pass, in which rolls it is bent to its final formor the bending rolls may be in 'front of a stand of reducing rolls tobend the partly reduced shape in a suitable manner to enter the laterreducing pass.

The operation of the apparatus is as follows :The shape to be finisher],having been rolled through the pass a in Fig. 2 is delivered into thepass b in the forming rolls 16, 17 shown in Fig. 3. These rolls bend themetal so as to readily enter the finishing pass a in the rolls 2, 3 inwhich the shape is finished by bonding to its final 't'orm. \Vl1en themetal enters the pass 7;, the rolls 16, 17 are positively driven throughthe jmwclntrh 3 6, 36' until the front end of the metal enters the passa in the rolls 2, 3. The rolls 2, in the finishing stand of rolls arerotated at a higher surface speed than those in the supplemental bendingrolls 16, 19. This causes the metal when it enters the finishing rollsto be fed forward at the same rate of speed as that of the surface ofthe finishing rolls 2, 3 and by the frictional contact of the metal withthe surfaces of. the rolls 16, 1 7, the metal which is now in both setsof rolls, causes the rol1s.16, 17' to rotate at the same surface speedas that of the finishing rolls 2, 3. \Vhen the speed of the supplementalrolls 16, 17 is increased so as to rotate faster than shaft 29 the jawclutch 36 advances on the jaw clutch 36, the inclined faces of the jawssliding on each other and causing the jaw clutch 36 to slide on shaft 29and to-compress the spring 39.

' When. the metal has been passed through the supplemental rolls l6, 17the speed of these rolls is reduced gradually untilthe jaws on .theclutch are againin contact, when the rolls are again positively rotatedby the clutch at the same speed as the shaft 29 until such time as a newshape has again entered both sets of rolls. 'As is shown in Figs. 2, 3and 4:, in addition to the passes a, b and c, duplicate passes a, b, care provided which are used when the first passes have become I worn byuse, in this way increasing the life of the rolls and reducing thenecessity for frequent changing of the rolls.

The advantages of my invention will be apparent to those skilled in theart. By having an independent set of rolls for bending the material I amenabled to make metal shapes, heretofore considered impossible. Thedifliculties experienced in making shapes having wide and thin flanges,are lessened, and the output of such mills is vgreatly'increased. 7

By the use of the clutch mechanism for driving the bending rolls, themetal may be in both the bending rolls and a later pass in the nextstand of rolls at the same time, slipping between the'contaetingsurfaces of the metal and the rolls is prevented, and both stands ofrolls are drivenat the same surface speed.

Variations may be made in the construction and arrangement of theapparatus without departing from my invention. The finishing stand may\reduce the metal or simply bend it. 1 The diameters of the bendingrolls may be much less than those of the next stand of .rolls, or thebending rolls may be positively driven at a slower speed. The bendingrolls may be positively driven by an independent motor instead of theclutch mechanism shown, and other changes may be .n ade withinthe scopeof the claims.

the combination with a stand of forming rolls having a reducing pass, ofa second I stand of rolls having a bending pass in. front of the formingrolls and arranged to bend partly reduced blanks preparatory to further.shaping them in the reducing pass of said forming rolls; substantiallyas described.

3.- In apparatus for rolling flanged shapes, the combination with astand of finishing rolls having a finishing pass therein, of a stand ofbending rolls in front of the finishing rolls and having a bending 'passarranged to bend partly formed blanks. preparatory to giving them theirfinal shape in the finishing pass of said finishing rolls; substantiallyas desribed.

4. In apparatus for rolling flanged shapes, the combination with a'stand of forming rolls having passes arranged to reduce metal blanks, ofa stand of bending rolls in front of said forming rolls and adapted tobend and feed partly reduced blanks into a finishing pass in the standof forming rolls; substantially as described.

the combination with a stand of reducing rolls having reducing passes,of a stand of bending rolls having bending passes, the

,bending rolls being in front of and adjacent to the rolls havingreducing passes, and being adapted to bend and feed partly formed blanksinto the reducing passes of said reducing rolls; substantially asdescribed.

6. In apparatus for rolling flanged shapes, the combination witha standof reducing rolls of a stand of bending rolls in proximity to thereducing rolls and arranged to bend partly formed blanks preparatory'tofurther shaping them in said reducing rolls, the surface speed of thebending rolls and reducing rolls being equalized by frictional contactwith blanks simultaneously in both stands of rolls; substantially asdescribed.

In testimony whereof, I have hereunto set my hand.

EDWIN F; SLICK. Witnesses:

H. G. R. BENNETT, R. D. LITTLE.

